Car-underframe.



G. A. JOHNSON.

CAR UNDERFRAME.

APPLICATION FILED OCT. 9. 1914.

Patented Nov. 21, 1916.

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Q r WITNESSES:

G. A. JOHNSON,

CAR UNDERFRAME.

APPLICATION FILED OCT; 9, 1914 1,5 35% Patel'ite v. 21,

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GEORGE A. JOHNSON, OF CHICAGOQILLINOIS, ASSIGNOR T0 "WILLIAM H. MINER, OF CHAZY, NEW YORK.

CAR-UNDEBFRAME.

mosses.

Specification of Letters Patent.

, Patented Nov. 211, acre.

Applicationfiled October 9, 1914. Serial No. 865,737.

' To all whom it may concern:

Be it known that I, GEORGE A. JoHnsoN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and I useful Improvement in Car-Underframes,

a part of this specification.

This invention relates to improvements in car underframes.

An object of the invention is to provide an under-frame structure more particularly adapted for cars employing wooden sills, which is of rigid and substantial construction, easily applied, and adapted to distribute the shocks from the draft rigging in an efficient manner to the under-frame structure.

In the drawing forming a part of this specification Figure 1 is a vertical sectional View of the end. portion of a railway car showing my improvements in connection therewith, the section being taken substantially on the centerline of the car. Fig. 2 is a horizontal sectional view taken substantially on the line 22, of Fig. 1 and Figs. 3 and 4 are enlarged transverse secbeneath the block 14 to the front side of the body bolster abutting latter as indicated at 16. Each draft arm 15, which maybe in the form of a steel of malleable casting, is

- provided with a series of stops 171-7 on its for the followers 1818 of any Well known type of draft gear, the gear shown in the inner side which serve their usual function drawing being of the tandem spring arrangement and employing a yoke 19 riveted or otherwise suitably secured to the draw bar 20. At its front end, each draft arm 15 is provided with a depressed portion 21 which extends below the block 14 and a horizontal web 22 which extends beneath the end sill and the corresponding center sill'lO. To the rear of the end sill, each draft arm is provided with an upwardly and inwardly extending shoulder or horn 23 each of which horns is provided with a face 24 bearing against the rear side of the end sill, it being apparent from an inspection of Fig. 2 that the horns 2323 extend shocks under draft are distributed over a larger area to the end sill. Secured to the inner and under side of each center sill 10 is an elongated angle'iron 25 which extends from a point considerably to the rear of the body bolster to a point approximately half way between the bolster and the end of the The lower horizontal web 26 of each angle iron is rigidly secured to the upper horizontal flange 22 of the .draft arm by means of a plurality of rivets 27 or other suitable devices. To the rear of the body bolster and extended transversely of the longitudinal -sills, is a connecting plate 28 which is riveted to the horizontal webs 26 of the angle irons and fits snugly against the rear side of the body bolster. Each draft arm 15, on the top thereof, is also provided with an upstanding shoulder 29' angle irons 25-25 are firmly united to the sills 10 by means of transversely extending bolts 30-30 and vertically extending sill bolts 3l-31. furthermore connected by means ofa transversely extending plate 32 at the rear thereinwardly toward each other to points nearly in line with the center line of the gear. In :this way, a large bearing is secured against the rear side of the end sill whereby the The draft arms 15 are of and just in front of the body bolster 12.

Guide straps 33 are also shown detachably secured to the draftarms by bolts and a saddle plate 34 as is customary.

From the preceding description, it will be seen that I have provided an unusually rigid connection between the draft arm and the wooden sills, the angle irons being riveted to the draft arms and the angle irons being bolted throughout their extended length to the sills. Under buff, it is apparent that the shocks are distributed through the draft arms directly to the body bolster at the rear of the draft arm and to the center sills by means of the forward vertical sill bolts and through the intermediary of the shoulders 29 enga ing the ends of the angle irons 25, the shoe s being also transmitted from the draft arm to the angle irons through the rivets.- Under draft, the shocks are distributed to the end sill by means of the horns 23 and to the sills 10 through the vertical sill bolts and on account of the rivet connection between the draft arms and the angle irons, and in this connection it will be noted that forward movement of the angle irons is resisted not only by the bolts connecting them with the sills 10 but by the transverse plate 24 which engages the-rear side of the body bolster.

From the preceding description it will also be seen that the under-frame construction which I have provided may be readily applied, inasmuch as there is very little cutting of the sills to be done and the shocks are transmitted to the center sills to points over and to the rear of the body bolster by very simple and cheap means, namely, com- I templated as come within the scope of the claims appended hereto.

I claim g I 1. In car underframingflhe combination with a wood center sill, body-bolster,and-

end sill, of a draft armhaving an integral abutment on the top thereof located between I the end sill and the body bolster, and a commercially shaped iron having one web thereof secured to the inner face of saidcenter sill and having the forward end'thereof'in engagement with said abutment, said abutment being seated in' a gain provided therefor in the center sill.

- 2. In under-framing for railway cars, the

combination with a wood center sill, an end sill, and a body bolster, of a cast draft arm having an upper, horizontal and outwardly extending flange disposed beneath and se cured to, said center sill, the draft arm ex- 1 tendi from the'body bolster underneath t end sill, said draft arm having a horn near its forward end engaging the rear side of the end sill and provided also with a box-like shoulder on itsupper portion, said center sill being recessed to receive said boxlike shoulder.

GEORGE. A;- JOHNSON. Witnesses:

CARRIE G. RANZ,

LUCILLE HIGGINS. 

